MOLECULAR DYNAMICS SIMULATION OF THE DEFORMATION OF AL NANOPILLARS

摘要：

Molecular dynamics are employed to simulate the compression process of Al nanopillar with both tree and rigid side surface boundary conditions.In both conditions,the results show that plastic deformation behaviors are governed by intense dislocation activities including nucleation,propagation,annihilation,and interaction.In addition,rigid surface can trap dislocations inside the pillar and finally increase the yield strength.The results are in agreement with recent compression experimental results.

关键词： molecular dynamics: compression: dislocation activities nanopillars

作者: S.Xu Y.F.Guo

作者单位: Institute of Engineering Mechanics,Beijing Jiaotong University,Beijing 100044,China

会议类型: 国际会议

会议名称: The Third International Conference on Heterogeneous Material Mechanics(第三届国际非均匀材料力学会议)

会议地点: 上海

会议语种:英文

页码: 96-99

在线出版日期: 2011-05-22（万方平台首次上网日期，不代表论文的发表时间）